Malicious PDF — malware analysis report

Static analysis result for SHA-256 54192d56a3d25d4b…

MALICIOUS

PDF

62.6 KB Created: 2020-07-25 14:42:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 867693b770d42644493ce79f8a1fd0d3 SHA-1: a21aee49e966f4983d2e06a9315eed6195a1217c SHA-256: 54192d56a3d25d4b0f4003e71d5236013f43ba9a42e382a3f170955210c90a37
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'event html template free', suggesting a lure. The primary IOC is the redirector URL, which is likely used to funnel victims to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=event+html+template+free In PDF document text
    • http://files.greaterlifeheritage.com/uploads/1/3/0/7/130776083/pugujakil-pirusafona-robejadi.pdfIn PDF document text
    • http://files.angelaadockter.com/uploads/1/3/2/6/132681492/9128e4b92f50.pdfIn PDF document text
    • http://files.studentfinanceboard.com/uploads/1/3/0/8/130874612/xovexod_jedebanel_sularuxipi_sowiboju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/wajarugazozolob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1222/7225/files/45210574567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5373/6351/files/dutotomumejajuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1385/7692/files/45512650930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3730/2679/files/rofinukajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/96606376642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/jenomopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5637/3659/files/jirinuzomuwujebow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3359/8880/files/57407023419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7261/8657/files/12530236442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/9445081716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2117/9802/files/tusawogidozumozog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/sexudemonororunojokokov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3391/1705/files/10514763169.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA48 4612 bytes
SHA-256: adf6e85a90f7729ba1c23a62b53bbec9990b09c080b06e073d9086bee5b43de4
font_01_sfnt_off0000c9b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9B9 10328 bytes
SHA-256: 7d810049dcd6550e731727bc20bdc8772baf8b3a7a7d1fc7353c7255f2482138

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